Some of the planets I come across have a very low influence rating. When I examine the breakdown of influence on the planet screen, there is:
Influence from population
Influence from improvements (Embassies and Cultural Exchange Centres for example) and miscellaneous
Influence from Civ's influence
However, there is a big fat zero for the following:
Influence from the planet
Influence from my civ's influence ability
Is it a feature for these planets to have such stunted culture (because most planets have a healthy bonus from the last two) or is it a bug?